Math updates 4/27
We will continue our Geometry Unit.
In this unit, your student will learn about two- and three-dimensional
shapes. The lessons address sorting and describing shapes, joining shapes to
make new shapes, and taking apart shapes.
The vocabulary words for this chapter are: two-dimensional shape, vertex,
side, trapezoid, rhombus, three-dimensional shape, curved surface, flat
surface, rectangular prism, and edge.
There are many ways to have fun reviewing what your student is learning about
two- and three-dimensional shapes. Try some of the following ideas.
- Point out examples of various shapes in the real world and ask your
student to use the math vocabulary to describe the shape. For
example, point out a yield sign. Ask, “What shape is that? How many
straight sides does a triangle have? How many vertices?” Contrast the
two-dimensional triangle with a three-dimensional traffic cone. Ask,
“How are the shapes similar? How are they different? How many flat
surfaces does a cone have? How many vertices? How many curved
surfaces?”
- Make a game of incorporating the vocabulary in this chapter into your
conversations. For example, refer to the round trash can as the “trash
cylinder” or the soccer ball as the “soccer sphere.” You can even
incorporate these words into your next game of “I Spy.”
- Collect examples of the three-dimensional shapes, such as soup cans,
tissue boxes, and ice cream cones. Sit where your student cannot see
your items and use them to build a structure. Then, describe your
structure and have your student try to build an identical structure
without looking at yours. For example, set a box of tissues on top of
two soup cans. Say, “There are two cylinders beside each other. A
rectangular prism is on top of them.” Then compare structures to see
if they look the same.
By the end of this chapter, your student should feel confident with the
learning targets and success criteria on the next page. Encourage your
student to find other examples of the shapes in this chapter.
Have a great time learning about two- and three-dimensional shapes together